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For the person who wants a subtle custom appearance with all the benefits that a Flowmaster Cat-back exhaust system provides. S.O.S. (Single out side) systems are the perfect choice. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

Mandrel bent 16 Gauge Tubing

Moderate Sound exterior exhaust tone

Includes hangers and hardware for easy installation

Dyno tuned for maximum performance

Made in USA

Product Attributes

Exhaust Series

American Thunder

Exit Position

Single Side Exit

Heat Shield

No

Inlet Diameter (in)

2.5

Material

Aluminized Steel

Muffler Part Number

52557

Muffler Quantity

1

Muffler Series

Super 50 Series

Single Dual

Single

Sound Level

Moderate Sound

System Type

Cat-back System

Tubing Diameter (in)

2.5

Outlet Diameter (in)

2.5

2WD/4WD

2WD/4WD

Tip Quantity

None

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Flowmaster® Series of Exhaust Systems include: American Thunder® | Force II | dBX® Series | Outlaw® Series | PRO Series